A hundred years ago, a war between gods and demons depleted the spiritual energy of the vast sea continent. The continuous sea of sand replaced the blue waves of the past, and the legendary Poseidon clan disappeared. A hundred years later, Mo Yang, an orphan in a border town, accidentally obtained a strange shell that could listen to the sounds of all things. He was horrified to find that every midnight, he could always hear the sad and long whale call from deep in the desert. In order to explore the mystery of his life experience and the truth about the whale's roar, and to find the legendary miracle that can restore the desert to an oasis, he took the snail shell and resolutely stepped into the sea of death. What awaits him is a strange giant beast lurking under the sand, various forces with evil intentions, and a shocking secret that has been buried in the sand for thousands of years.